Log4J配备讲解

2012-09-16

Log4J配置讲解官方网站：http://logging.apache.org/log4j/index.html：转载地址：http://jiajun.iteye.com/

Log4J配置讲解
官方网站：http://logging.apache.org/log4j/index.html：

转载地址：http://jiajun.iteye.com/blog/439104

读取配置文件
   1. package org.cjj.log4j.config.xml;
   2.
   3. import java.net.URL;
   4.
   5. import org.apache.log4j.xml.DOMConfigurator;
   6.
   7. /**
   8. * 单实例读取log4j配置文件，初始化log4j
   9. *
10. * @author cjj
11. *
12. */
13. public class Log4jXMLConfig
14. {
15.     private static Log4jXMLConfig instance;
16.
17.     public static synchronized Log4jXMLConfig initia()
18.     {
19.         if (instance == null)
20.         {
21.             return new Log4jXMLConfig();
22.         }
23.         return instance;
24.     }
25.
26.     private Log4jXMLConfig()
27.     {
28.         final URL url = Log4jXMLConfig.class.getResource("log4j.xml");
29.         DOMConfigurator.configure(url);
30.     }
31. }

package org.cjj.log4j.config.xml;

import java.net.URL;

import org.apache.log4j.xml.DOMConfigurator;

/**
* 单实例读取log4j配置文件，初始化log4j
*
* @author cjj
*
*/
public class Log4jXMLConfig
{
    private static Log4jXMLConfig instance;

    public static synchronized Log4jXMLConfig initia()
    {
        if (instance == null)
        {
            return new Log4jXMLConfig();
        }
        return instance;
    }

    private Log4jXMLConfig()
    {
        final URL url = Log4jXMLConfig.class.getResource("log4j.xml");
        DOMConfigurator.configure(url);
    }
}

配置文件
Xml代码

   1. <?xml version="1.0" encoding="UTF-8" ?>
   2. <!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
   3. <log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
   4.
   5.     
   6.     
   7.     
   8.     
   9.     
10.     
11.     
12.     
13.     
14.
15.     
16.     
17.     
18.     
19.     
20.     
21.     
22. 
23. 
24.     <appender name="filelog_appender"
25.         value="log/testlog4jxml_all.log" />
28.         
29.         <param name="Append" value="true" />
30.         
31.         <param name="MaxFileSize" value="1MB" />
32.         
33.         <param name="MaxBackupIndex" value="10000" />
34.         
35.         <layout value="%d{yyyy-MM-dd HH:mm:ss} %-5p (%c:%L)- %m%n" />
37.         </layout>
38.     </appender>
39.
40. 
41.     <appender name="filelog_daily" value="log/daily.log" />
43.         <param name="DatePattern" value="'daily.'yyyy-MM-dd'.log'" />
44.         <layout value="[%d{yyyy-MM-dd HH:mm:ss\} %-5p] [%t] (%c:%L) - %m%n" />
46.         </layout>
47.     </appender>
48.
49. 
50.     <appender name="console" />
54.             
55.         </layout>
56.     </appender>
57.
58. <appender name="EMAIL_QQ" value="INFO"/>
60.         <param name="BufferSize" value="128" />
61.         <param name="SMTPHost" value="smtp.qq.com" />
62.         <param name="SMTPUsername" value="cjjvictory" />
63.         <param name="SMTPPassword" value="***" />
64.         <param name="From" value="cjjvictory@qq.com" />
65.         <param name="To" value="cjjvictory@gmail.com" />
66.         <param name="Subject" value="测试邮件发送" />
67.         <param name="LocationInfo" value="true" />
68.         <param name="SMTPDebug" value="true" />
69.         <layout value="[%d{ISO8601}] %-5p %c %m%n"/>
71.         </layout>
72.     </appender>
73.
74. 
75.     <appender name="ASYNC_test" value="10"/>
77.      <appender-ref ref="EMAIL_QQ"/>
78.    </appender>
79.
80. 
81.     <category name="org.cjj" additivity="false">
82.                
83.         <level value="ERROR" />
84.         <appender-ref ref="filelog_daily" />
85.         <appender-ref ref="daily_appender" />
86.         <appender-ref ref="console" />
87.         <appender-ref ref="ASYNC_test" />
88. </category>
89.
90. </log4j:configuration>

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">




















<appender name="filelog_appender"
value="log/testlog4jxml_all.log" />

<param name="Append" value="true" />

<param name="MaxFileSize" value="1MB" />

<param name="MaxBackupIndex" value="10000" />

<layout value="%d{yyyy-MM-dd HH:mm:ss} %-5p (%c:%L)- %m%n" />
</layout>
</appender>


<appender name="filelog_daily" value="log/daily.log" />
        <param name="DatePattern" value="'daily.'yyyy-MM-dd'.log'" />
        <layout value="[%d{yyyy-MM-dd HH:mm:ss\} %-5p] [%t] (%c:%L) - %m%n" />
        </layout>
</appender>


<appender name="console"
value="%d{yyyy-MM-dd HH:mm:ss} %-5p: %m%n" />

</layout>
</appender>

<appender name="EMAIL_QQ" value="INFO"/>
<param name="BufferSize" value="128" />
<param name="SMTPHost" value="smtp.qq.com" />
<param name="SMTPUsername" value="cjjvictory" />
<param name="SMTPPassword" value="***" />
<param name="From" value="cjjvictory@qq.com" />
<param name="To" value="cjjvictory@gmail.com" />
<param name="Subject" value="测试邮件发送" />
<param name="LocationInfo" value="true" />
<param name="SMTPDebug" value="true" />
<layout value="[%d{ISO8601}] %-5p %c %m%n"/>
</layout>
</appender>


<appender name="ASYNC_test" value="10"/>
     <appender-ref ref="EMAIL_QQ"/>
   </appender>


<category name="org.cjj" additivity="false">
               
<level value="ERROR" />
<appender-ref ref="filelog_daily" />
<appender-ref ref="daily_appender" />
<appender-ref ref="console" />
<appender-ref ref="ASYNC_test" />
</category>

</log4j:configuration>

邮件乱码问题：

邮件发送的布局采用了org.cjj.log4j.extend.PatternLayout_zh，因为原来的org.apache.log4j.PatternLayout会有乱码，所以重写一个方法既可。可能方法有点野蛮，所以那位有好的方法还请指教。

   1. package org.cjj.log4j.extend;
   2.
   3. import org.apache.log4j.PatternLayout;
   4.
   5. public class PatternLayout_zh extends PatternLayout
   6. {
   7.     @Override
   8.     public String getContentType()
   9.     {
10.         return "text/html;charset=GBK";
11.     }
12. }

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